A young man gets off the train in the morning and wanders the business districts aimlessly. He runs across some yakuza gangsters, whom he despises, and goes on a killing spree, but soon becomes involved with a subordinate gang.

Fritz and Megan find themselves working at 'The Complex', a facility that secretly watches extraterrestrial activity. Unable to trust anyone else because of the alien invasion, they decide to infiltrate the mutant infested wasteland of Florida and fight the invaders.